Gurobi 5.0.1 (linux64) logging started Tue Apr 23 22:02:14 2013 Optimize a model with 100 rows, 2550 columns and 5050 nonzeros Presolve removed 8 rows and 2039 columns Presolve time: 0.00s Presolved: 92 rows, 511 columns, 924 nonzeros Variable types: 462 continuous, 49 integer (49 binary) Root relaxation: objective 7.235806e+05, 57 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 723580.563 0 43 - 723580.563 - - 0s H 0 0 1349592.7750 723580.563 46.4% - 0s 0 0 826016.985 0 24 1349592.77 826016.985 38.8% - 0s H 0 0 1204976.8188 826016.985 31.4% - 0s H 0 0 920972.96250 826016.985 10.3% - 0s 0 0 855193.997 0 25 920972.963 855193.997 7.14% - 0s H 0 0 905267.78750 855193.997 5.53% - 0s 0 0 870707.650 0 20 905267.787 870707.650 3.82% - 0s 0 0 882269.325 0 16 905267.787 882269.325 2.54% - 0s H 0 0 904731.97500 882269.325 2.48% - 0s 0 0 888084.455 0 11 904731.975 888084.455 1.84% - 0s H 0 0 900988.91250 888084.455 1.43% - 0s 0 2 888142.077 0 11 900988.912 888142.077 1.43% - 0s * 17 5 17 893782.11250 892792.745 0.11% 2.8 0s * 21 1 16 893076.71250 892824.490 0.03% 2.8 0s Cutting planes: Gomory: 1 Implied bound: 166 Explored 23 nodes (317 simplex iterations) in 0.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.930767125000e+05, best bound 8.930767125000e+05, gap 0.0%